Home / 876,102.84-1,209,063.06-494,121.96

Finding the Fourth Proportional to 876,102.84, 1,209,063.06 and 494,121.96

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Solution

The fourth proportional to 876,102.84, 1,209,063.06 and 494,121.96 is: 681,911.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,102.84 : 1,209,063.06 = 494,121.96 : x
  2. Step 2: Convert to fraction form
    876,102.84/1,209,063.06 = 494,121.96/x
  3. Step 3: Cross multiply
    876,102.84x = 1,209,063.06 × 494,121.96
  4. Step 4: Simplify right side
    876,102.84x = 597,424,608,970.80
  5. Step 5: Solve for x
    x = 597,424,608,970.80/876,102.84
  6. Step 6: Final answer
    x = 681,911.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.